BATCH-TYPE VACUUM DEAERATOR FOR HEATING AND HOT WATER SYSTEMS (TWO EMBODIMENTS) Russian patent published in 2024 - IPC B01D19/00 C02F1/20 

FIELD: thermal power engineering.

SUBSTANCE: invention can be used to remove gases from feed water of the heating and hot water supply systems. According to the first variant, a periodic vacuum deaerator of a heating and hot water supply system includes a control system, deaeration chamber 1, in the upper part of which there is nozzle 2 for spraying the source water, valve 3 for water supply to the nozzle and gas release valve 4, and water low-level sensor 5 at the bottom, outlet pipe 6 connected to the inlet of pump 7 and check valve 8 connected to the outlet of pump 7. Water high-level sensor 9 is additionally installed in the upper part of deaeration chamber 1, and deaeration start sensor 10 is installed under nozzle 2 for spraying the source water. Behind check valve 8 there is outlet pipe 11 with valve 12 for displacing the vapour-gas mixture, the outlet of which is connected to the lower part of deaeration chamber 1. According to variant 2, in the upper part of deaeration chamber 1 the following are additionally installed: water high-level sensor 9 and a valve to prevent the release of water, and under the nozzle 2 for spraying the source water there is sensor 10 for the start of deaeration. Behind check valve 8 an outlet pipe is mounted with a valve for displacing the vapour-gas mixture, the outlet of which is connected to the inlet pipe of the water emission prevention valve, and a downpipe is connected to the outlet pipe of the water emission prevention valve, the open end of which is located above the bottom of deaeration chamber 1.

EFFECT: improving the quality of deaeration and productivity without increasing the size, weight and energy consumption for a deaerator with both a low flow rate of water flow and an increased flow rate of water flow, for the possibility of using the deaerator in block-modular and small boiler houses.

7 cl, 2 dwg